function loadHeader() {
	var persons = new Array(5);
	persons[0] = "terpe";
	persons[1] = "jaeger";
	persons[2] = "krlsw";
	persons[3] = "munser";
	persons[4] = "schulz";

	var id = Math.floor(Math.random()*5);

	document.getElementById("header").style.backgroundImage = "url(ressource/gruene/header_"+persons[id]+".jpg)";
	document.getElementById("person").style.backgroundImage = "url(ressource/gruene/"+persons[id]+".jpg)";
}